Earth auger



Jan-1. 13. 1925. n' 1,523,143

O. SCHWEISGUT EARTH AUGER Filed July l5. 1921 Patented Jan. 13, 1925i.

OTTO SCHWEISGUT, OF MUNICH, GERMANY, ASSIG-NOR OF ONE-HALF T FRIEDRICHWAHRENBURG, OF MUNICI-I, GERMANY.

EARTH AUSER.

Application filed July 15, 1921.

certain new and useful Improved Earth Auger (for which I have filedapplication in Germany April l2, 1920), of which the following is aspecification.

This invention relates to an earth auger,

the configuration of which is such that the earth which the spirallyshaped auger blade has loosened may be easily, and without loss. removedfrom the bore hole. This is attained by making a flap which is hinged tothe blade, preferably at its upper end, longer than the height; of theblade passage and connecting it with the blade or blade-end by an eye orthe like, in such a manner, that it may freely swing upwardly anddownwardly, as is more fully described hereinafter.

In order to make my invention more clear.A I refer to the accompanyingdrawing which shows by way of example a perspective illustration of theworking end of an earth auger constructed according to this invention.

The auger consists in general iny known manner of a body or shaft bhaving at its upper end a handle and at its lower end a worm a ofsuitable diameter and rather steep pitch. The lowermost end of the bodyor shaft o is provided with a pointed foot c.

To the upper end of the worm a is hinged the flap Z which, althoughknown per se, is, in the case in question, bent and curvedcorrespondingly to the worm. Preferably the flap is attached to the wormby an eye e, in such a manner, that it may swing upwardly and downwardlyin any direction. y

The length ofthe Hap depends upon the Serial No. 484,944.

height of the worm passage and is a little greater than this latter.

Duringthe boring operation the flap is in the position shown in dottedlines and forms thus a continuation of the worm; it does not impede theboring operation in any way. If, finally, theV auger is to be drawn outof the bore hole, it is prior thereto turned a little in the oppositedirec tion whereby the liap is depressed into the position shown in fulllines, in which its free end contacts with the worm portion below it; inthis position'of the flap it closes the space between said worm portionand the upper worm end, whereby the earth present above the worm isprevented from gliding down upon the sloping worm blade. rIhe earth islifted together with the auger, without any remainder, and neitherparticular precaution is, nor special means are, necessary to thateffect.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

l. An earth auger of the character set forth, comprising in combinationwith a sha-nk and a steep-pitched cutting worm, a flap curved incontinuation of the curvature of said worm, and a universal hingeconnection between said worm and said iiap.

2. An earth auger of the character set forth, comprising in combinationwith a shank, a steep-pitched cutting worm, a flap closely conforming tothe curvature of said worm and somewhat longer than the height of theworm pitch, and a single ring hingew connection between said worm andsaid fiap.

In testimony whereof I aflix my signature.

OTTO SOHIEISGUT.

